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 APPLICATION: MEASURING THE TOTAL VOLUME OF COLD POTABLE WATER PASSING THROUGH THE METER (ALSO SUITABLE FOR PURE WATER).   OPERATING CONDITION:  *THE MAX.ADMISSIBLE WATER PRESSURE 1.6MPa *RESISTING WATER TERPERATURE OF 50℃   SPECIALITY: * LOW START-UP FLOW-RATE * INSTALLATION IN ANY POSITION (SUCH AS LEVEL, VERTICAL)  * POSITIVE ROTATING PISTON TYPE, WITH RELIABLE PERFORMANCE                 * HIGH ACCURACY * BRASS BODY * ON REQUEST,THIS SERIES CAN BE EQUIPPED WITH THE PULSE DEVICE 
Maximum permissible error:
 Between qt (included) and qs is ±2%; Between qmin and qt (excluded) is ±5%. NOTE: The technical data conform to ISO4064 standard, class C.
 FLOW-ERROR CURVE
  SPECIFICATION AND OVERAL DIMENSIONS
   
| Description | Unit | Hydraulic data and dimensions |  
| Nominal size  | mm(inch) | DN15( 1/2″) | DN20( 3/4″) | DN25 ( 1″) |  
| Overload flow-rate (qs) | IMP.GAL/h | 660 | 1100 | 1540 |  
| Permanent flow-rate (qp) | IMP.GAL/h | 330 | 550 | 770 |  
| Transitional flow-rate (qt) | IMP.GAL/h | 4.95 | 8.25 | 11.55 |  
| Minimum flow-rate (qmin) | IMP.GAL/h | 3.3 | 5.5 | 7.7 |  
| Min. reading  | IMP.Gallons | 0.1 | 0.1 | 0.1 |  
| Max. reading  | IMP.Gallons | 99999999 | 99999999 | 99999999 |  
| Nominal pressure  | MPa | 1.6 | 1.6 | 1.6 |  
| ΔP at the qs | MPa | ≤0.1 | ≤0.1 | ≤0.1 |  
| L | mm | 195 | 267 | 319 |  
| I | mm | 115 | 165 | 199  |  
| B | mm | 43 | 43 | 53 |  
| Weight  | With connections | Kg | 1.14 | 1.56 | 2.48 |  
| Without connections  | Kg | 0.97 | 1.30 | 2.05 |  OVERALL DIMENSIONS    PRESSURE LOSS CURVE
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